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<p>console清空控制台–<code>console.clear()</code></p>
<h4 id="二、console-debug，info，warn，error"><a href="#二、console-debug，info，warn，error" class="headerlink" title="二、console.debug，info，warn，error"></a>二、console.debug，info，warn，error</h4><p>一、显示信息的命令<br>console.log();  &#x2F;&#x2F;控制台输入 网页中不会输出<br>console.info();  &#x2F;&#x2F;一般信息<br>console.debug();  &#x2F;&#x2F;除错信息<br>console.warn();  &#x2F;&#x2F;警告提示<br>console.error();  &#x2F;&#x2F;错误提示</p>
<p> “console.log();” 可以用来取代 “alert();” 或 “document.write();” 比如，在网页中写入 “console.log(“Hello World”);” 然后会在控制台输入，但是网页中并不会输入。方法使用一模一样，只是显示的图标和文字颜色不一样。</p>
<h4 id="三、-console-assert-expression-object-…"><a href="#三、-console-assert-expression-object-…" class="headerlink" title="三、 console. assert(expression[, object, …])"></a>三、 console. assert(expression[, object, …])</h4><p>assert 方法类似于单元测试中的断言，当 expression 表达式为 false 的时候，输出后面的信息,e.g：<br>注：assert 方法在 firebuglite 不支持，Chrome 和 FireBug 支持<br>console.clear() -该方法清空 console 中的所有信息<br>console.dir(object)-以列表的方式打印 object 对象中的所有属性，e.g：<br>console.dirxml(node)-把 <a target="_blank" rel="noopener" href="http://liuxiaofan.com/">html</a> 元素的<a target="_blank" rel="noopener" href="http://liuxiaofan.com/">html</a> 代码打印出来，e.g:<br>console.trace()<br>trace 方法可以查看当前函数的调用堆栈信息，即当前函数是如何调用的。</p>
<p><a target="_blank" rel="noopener" href="http://es6.ruanyifeng.com/#docs/destructuring">http://es6.ruanyifeng.com/#docs/destructuring</a></p>
<p><a target="_blank" rel="noopener" href="http://www.leixuesong.cn/1849">JS console方法详解</a></p>
<p><a target="_blank" rel="noopener" href="http://www.ruanyifeng.com/blog/2011/03/firebug_console_tutorial.html">Firebug控制台详解</a></p>
<p><a target="_blank" rel="noopener" href="http://liuxiaofan.com/2013/12/12/1582.html">控制台命令Console详解</a></p>
</div></article><div class="post-copyright"><div class="post-copyright__author"><span class="post-copyright-meta">文章作者: </span><span class="post-copyright-info"><a href="mailto:undefined">kyren</a></span></div><div class="post-copyright__type"><span class="post-copyright-meta">文章链接: </span><span class="post-copyright-info"><a href="http://huluo666.gitee.io/2016/05/10/js学习之 控制台打印console/">http://huluo666.gitee.io/2016/05/10/js学习之 控制台打印console/</a></span></div><div class="post-copyright__notice"><span class="post-copyright-meta">版权声明: </span><span class="post-copyright-info">本博客所有文章除特别声明外，均采用 <a target="_blank" rel="noopener" href="https://creativecommons.org/licenses/by-nc-sa/4.0/">CC BY-NC-SA 4.0</a> 许可协议。转载请注明来自 <a href="http://huluo666.gitee.io">Kyren's Blog</a>！</span></div></div><div class="post-meta__tag-list"><a class="post-meta__tags" href="/tags/JavaScript/">JavaScript</a></div><nav id="pagination"><div class="prev-post pull-left"><a href="/2016/05/11/%E5%88%A9%E7%94%A8runtime%E8%BF%9B%E8%A1%8C%E5%A4%9C%E9%97%B4%E6%A8%A1%E5%BC%8F%E5%9B%BE%E7%89%87%E5%8A%A0%E8%BD%BD/"><i class="fa fa-chevron-left">  </i><span>利用runtime进行夜间模式图片加载</span></a></div><div class="next-post pull-right"><a href="/2016/05/09/sublime%20text%20%E7%BC%96%E8%AF%91javascript/"><span>sublime text 编译javascript</span><i class="fa fa-chevron-right"></i></a></div></nav></div></div><footer><div class="layout" id="footer"><div class="copyright">&copy;2022 By kyren</div><div class="framework-info"><span>驱动 - </span><a target="_blank" rel="noopener" href="http://hexo.io"><span>Hexo</span></a><span class="footer-separator">|</span><span>主题 - </span><a target="_blank" rel="noopener" href="https://github.com/Molunerfinn/hexo-theme-melody"><span>Melody</span></a></div><div class="footer_custom_text">hitokoto</div><div class="busuanzi"><script async src="//busuanzi.ibruce.info/busuanzi/2.3/busuanzi.pure.mini.js"></script><span id="busuanzi_container_page_pv"><i class="fa fa-file"></i><span id="busuanzi_value_page_pv"></span><span></span></span></div></div></footer><i class="fa fa-arrow-up" id="go-up" aria-hidden="true"></i><script src="https://cdn.jsdelivr.net/npm/animejs@latest/lib/anime.min.js"></script><script src="https://cdn.jsdelivr.net/npm/jquery@latest/dist/jquery.min.js"></script><script src="https://cdn.jsdelivr.net/npm/@fancyapps/fancybox@latest/dist/jquery.fancybox.min.js"></script><script src="https://cdn.jsdelivr.net/npm/velocity-animate@latest/velocity.min.js"></script><script src="https://cdn.jsdelivr.net/npm/velocity-ui-pack@latest/velocity.ui.min.js"></script><script src="/js/utils.js?version=1.9.0"></script><script src="/js/fancybox.js?version=1.9.0"></script><script src="/js/sidebar.js?version=1.9.0"></script><script src="/js/copy.js?version=1.9.0"></script><script src="/js/fireworks.js?version=1.9.0"></script><script src="/js/transition.js?version=1.9.0"></script><script src="/js/scroll.js?version=1.9.0"></script><script src="/js/head.js?version=1.9.0"></script><script src="/js/search/local-search.js"></script><script>if(/Android|webOS|iPhone|iPod|iPad|BlackBerry/i.test(navigator.userAgent)) {
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